By the time Visoun's grandson, Setthathilat (1548-1571), came to power, Burma was becoming an increasing threat to Lane Xang, so he officially moved his capital to the more strategically sited Vientiane in 1563; the revered Pha Bang was left in Xiang Dong Xiang Thong, and the city renamed after it. Despite the relocation, Burmese warrior-kings still managed to reduce Lane Xang (along with Lan Na and Ayutthaya) to vassalage within a decade.